import Vue from "vue";
import VueRouter from "vue-router";
import Login from "../views/Login.vue";
import Home from "../views/Home.vue";
import Welcome from "../views/Welcome.vue";
import Users from "../views/user/Users.vue";
import Cate from "../views/Cate/Cate.vue";
import List from "../views/Cate/List.vue";
import Add from "../views/Cate/Add.vue";

Vue.use(VueRouter);

const router = new VueRouter({
  routes: [
    {
      path: "/",
      redirect: "/login",
    },
    {
      path: "/login",
      component: Login,
    },
    {
      path: "/home",
      component: Home,
      redirect: "/users",
      children: [
        {
          path: "/welcome",
          component: Welcome,
        },
        {
          path: "/users",
          component: Users,
        },
        {
          path: "/cate",
          component: Cate,
        },
        {
          path: "/list",
          component: List,
        },
        {
          path: "/add",
          component: Add,
        },
      ],
    },
  ],
});

// 挂载路由导航守卫
router.beforeEach((to, from, next) => {
  // to 将要访问的路径
  // from 代表从哪个路径跳转而来
  // next 是一个函数，表示放行
  //  next() 放行     next('/login')  强制跳转
  if (to.path === "/login") return next();
  // 获取token
  const tokenStr = window.sessionStorage.getItem("token");
  if (!tokenStr) return next("/login");
  next();
});

export default router;
